import java.io*;

public class IO{
	public static void main dump{InputStream src,Outputstream dest)
		   throws IOExpection{
		   try (InputStream input=src;OutputStrem output=dest){
			   byte data[]=new byte[1024];
			   int length；
		           while（（length=input.read(data)!=-1){
				   output.write(data,o,length);
			   }
		   }
		}
		             
